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Bureau of Mines / Minerals yearbook: Metals and minerals 1977
Year 1977, Volume 1 (1977)

Cammarota, V. Anthony, Jr.; Lucas, John M.
Zinc,   pp. 993-1026 PDF (3.7 MB)


Page 993

 
Zinc 
By V. Anthony Canimarota, Jr.' and John M. Lucas1 
The zinc industry in 1977 was marked by due to ore depletion or low zinc
prices. A 
production cutbacks, lower consumption, 4-month strike at a mine in Tennessee
cut 
falling prices, and labor strikes. Mine pro- production in that State, and
a 5-month 
duction of recoverable zinc fell 7%, primary strike at a smelter in Idaho
affected mine 
slab zinc production dropped 10%, and slab production in several Western
States. 
zinc consumption decreased 3%. Several U.S. primary and secondary smelters
pro- 
mine closures and strikes adversely affected duced 500,756 tons of slab zinc,
down 12% 
both mine and smelter production. Primary from that of 1976. A strike, mechanical
producers announced cutbacks in pro- problems at several smelters, and cutbacks
duction rates to about 70% of capacity in in produc~n to bring it more in
line with the second half of the year. Stocks of both demand were reasons
for the decline. The 
consumers and producers fell 21%. construction of a new 90,000-ton-per-year
Mine development continued in middle zinc plant in Tennessee was nearly half-
Tennessee, while several mines in Arizona, completed by yearend. 
Maine, Tennessee, and Washington closed Consumption of slab zinc was 1.1
million 
Table L—Salient zinc statistics 
 1973 1974 1975 1976 1977 
United States: 
Production: 
Domestic ores, recoverable contentshort tons_ — 478,850 499,872
469,355
484,513 449,620 
Value thousands... $197,861 $358,908 $366,097 $358,541 $309,338 
' Excludes rediatilled slab zinc. 
2lncludad in total amount withdrawn from Government stockpile. 
' Primary metal production only; includes secondary metal production where
inseparably included in country total. 
993 
Slab zinc: 
 From domestic ores short ton&. - 
 From foreign ores _ 
 From scrap    do~ - - 
Total 
 Secondaryzinc1 
Expoi~tsofsJabzinc~ do_~_ Imports (general)~ 
Ores(zinccontent) - ~ 
 Slabzinc ~ Stocks, December 31: 
 Atproducer plants -             do.~_ 
 Atconsumerplants              do__ 
 Governrnentstockpile do_.~__ 
ReProce8aedGSAzinc~               
Consumption: 
 Slabzlnc                      
 All classes do___. 
Price: Prime Western, cents per pound (delivered) - 
World: 
Production: 
    Mine short tOns.... 6,298,484 
    Smelter3 do..~ 5,876,535 
 Price: Prime Western grade, London 
  centsperpound  38.55 
 399,119 346,993 301,959 381,872 855,174 
 184,360 208,195 130,092 116,983 94,971 
 83,187 78,535. 57,886 r63,~ 50,611 
 666 666 633 723 495,937 r567 410 500 756 
 300,073 259,947 225,315 r304,336 3~3,128 
 14,566 19,062 6,897 3,513 237 
 199~634 240,043 144,987 97,115 122,808 
 592,046 539,538 380,437 714,489 576,736 
 25,947 39,720 74,676 r96,950 92,387 
 114,317 211,158 107,276 121,154 80,941 
 677,009 391,600 385,714 385,192 383,415 
 109,333 42,850 3,442 — — — — 
 1,503,988 1,287,696 925,330 1,184,141 1,101,765 
 1,931,925 1,678,013 1,231,815 p1,586,890 1,507,635 
 20.66 35.95 38.96 37.01 34.39 
 6,371,590 r6,448 041 ~6,357,626 6,682,951 
 6,182,680 T5,536,379 r5,907,568 6,040,834 
 56.13 33.76 32.38 26.71 


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